Results 151 to 160 of about 2,460 (178)
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Bioinformatic prediction of Trichoplax adhaerens regulatory peptides
General and Comparative Endocrinology, 2015Trichoplax adhaerens (phylum Placozoa) is a very simple organism that lacks a nervous system. However, its genome contains many genes essential for neuronal function and development. I report the results of regulatory peptide predictions for this enigmatic animal. Extensive transcriptome, genome, and predicted proteome mining allowed us to predict four
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Expression pattern of the homeobox gene Not in the basal metazoan Trichoplax adhaerens
Gene Expression Patterns, 2004The homeobox gene Not is highly conserved in Xenopus, chicken and zebrafish with an apparent role in notochord formation, which inspired the name of this distinct subfamily. Interestingly, Not genes are also well conserved in animals without notochord such as sea urchins, Drosophila or even Hydra, but appear to be highly derived in mammals.
Martinelli C, Spring J
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Disaggregation and Reaggregation of Cells of the Primitive Metazoon Trichoplax adhaerens
Differentiation, 1979Trichoplax cells can be dispersed after the action of colchicine, vinblastine, and sea water free of divalent ions. Since lumicolchicine, which is inactive against microtubules can also cause disaggregation, the plant alkaloids are thought to be bound to components of the cell membrane involved in cellular adhesion. After washing, the cells reaggregate
A. RUTHMANN, U. TERWELP
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Trichoplax adhaerens F. E. Schulze (Placozoa): The Formation of Swarmers
Zeitschrift Fur Naturforschung - Section C Journal of Biosciences, 1988 Abstract Flageilated swarmers representing an alternative mode of asexual reproduction are budded off as hollow spheres at the dorsal surface. They are covered by cells of the dorsal epithelium and the interior cavity is lined by ventral epithelium. Fiber cells are in the interspace.
Martin Thiemann, August Ruthmann
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A multiagent multicellular systems biology model of Trichoplax adhaerens
2008 IEEE International Conference on Electro/Information Technology, 2008We present an agent-based simulation model of the animal Trichoplax adhaerens (phylum: Placozoa). The model attempts to simulate the whole organism based on a cellular-level description. The question we wish to address is: How does whole organism morphology and behavior emerge from cellular activity? A prototype animal model was specified, designed and
Karl Altenburg, Karthik Namasivayam
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Functional Studies of Trichoplax adhaerens Voltage-Gated Calcium Channel Activity
2020Trichoplax adhaerens is a member of the phylum Placozoa, an enigmatic group of benthic animals with remarkably simple morphology. While initial work on these organisms has primarily focused on their morphology and the development of genomic resources, Trichoplax has received increased attention as a model for studying the evolution of nervous and ...
Julia, Gauberg +2 more
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Microfilaments and microtubules in isolated fiber cells of Trichoplax adhaerens (Placozoa)
Zoomorphology, 1989Fiber cells isolated by mechanical disruption of the tissue in Ca2+-free sea water attach firmly to the substrate by discrete adhesion plaques. They are capable of forming a lamellipodium and long, slender extensions while the cell bodies remain stationary. The extensions are slowly elongated but can suddenly be withdrawn by contraction.
Martin Thiemann, August Ruthmann
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Transepithelial Cytophagy by Trichoplax adhaerens F. E. Schulze (Placozoa) Feeding on Yeast
Zeitschrift Fur Naturforschung - Section C Journal of Biosciences, 1986 After accidental observations of unicellular algae trapped in the intermediate layer of Trichoplax, dead yeast cells were offered systematically as a food. Some of them could be found several hours later engulfed by the big tetraploid fibre cells closely beneath the dorsal epithelium of the animal.
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Trichoplax adhaerens F.E. Schulze (placozoa) in the scanning electron microscope
Zoomorphologie, 19791. The dorsal epithelium consists of flattened polygonal cells with various surface modifications including ruffles, microvilli-like projections, and small protruding vesicles. A double ridge arises where adjacent cells meet. The refractile lipid globules reach almost to the surface not by a pore, but by a slit between adjoining cells. There is some
Jürgen Rassat, August Ruthmann
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Adherens Junctions Modulate Diffusion between Epithelial Cells inTrichoplax adhaerens
The Biological Bulletin, 2016Trichoplax adhaerens is the sole named member of Placozoa, an ancient metazoan phylum. This coin-shaped animal glides on ventral cilia to find and digest algae on the substrate. It has only six cell types, all but two of which are incorporated into the epithelium that encloses it. The upper epithelium is thin, composed of a pavement of relatively large
Carolyn L, Smith, Thomas S, Reese
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